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Melexis Technologies NV MLX90380LDC-BAB-300-SP
- Part No.:
- MLX90380LDC-BAB-300-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-300-SP.pdf
- Description:
- TRIAXIS HI-SPEED RESOLVER FEAT.
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
MLX90380LDC-BAB-300-SP from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver replacement in motor control systems. It operates from 3.3V or 5V supply, supports -40°C to 150°C ambient, features 4µs output refresh rate, and is factory-programmed for NdFeB magnet compatibility with 30mT full-scale magnetic range and X/Z magnetic axis configuration.
For engineers reviewing the MLX90380LDC-BAB-300-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, angular error performance under dynamic compensation, magnetic axis selection impact on end-of-shaft vs. through-shaft mounting, and real-world substitution guidance for automotive and industrial BLDC/PMSM systems.
Technical Context
The MLX90380LDC-BAB-300-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs deliver ratiometric sine/cosine signals referenced to VDD, enabling high-resolution angle computation via external arctan processing.
This variant is preconfigured for X/Z axis operation with NdFeB magnet optimization (BAB), 30mT full-scale range (suffix -300), and medium bandwidth programming (third digit '0' → BAx-3xx = 5V + medium BW). Output tracking delay is 29.5µs, and total angular error is reduced to ±1° with dynamic offset/gain compensation applied off-chip.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables >25,000 rpm rotor speed support with 1.6 samples/degree at max speed. |
| Operating Supply | 3.3V or 5V - Dual-rail support allows direct interface with 3.3V MCUs or legacy 5V systems; VDD3V3 and VDD5V pins are separate. |
| Full-Scale Magnetic Range | 30 mT - Factory-programmed sensitivity matches NdFeB magnets in compact end-of-shaft configurations. |
| Magnetic Axis | X/Z - OUT1 measures BX, OUT2 measures BZ; enables accurate angle sensing with two-pole off-axis (through-shaft) magnet placement. |
| Angular Accuracy | ±1° with dynamic compensation - Achieved via external ECU correction of offset, gain, and phase; excludes mechanical/magnet eccentricity errors. |
| Temperature Range | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments without derating. |
| Output Type | Ratiometric sine/cosine - Output voltages scale linearly with VDD (5–95% VDD range), simplifying ADC reference design. |
Pinout & Package
MLX90380LDC-BAB-300-SP uses the SOIC-8 package (JEDEC MS-012AC), 3.9mm × 4.9mm body, 1.27mm pitch, with exposed pad not electrically connected. Pin 1 is marked by notch or dot; pins 2 and 4 are NC and must be grounded for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for internal circuitry and output stage; connect directly to low-impedance system GND plane. |
| 2 NC | Not Connected | Internally unconnected; must be tied to GND per datasheet for optimal EMC performance. |
| 3 TEST | Test Pin | Factory test access; tie to GND in application to suppress noise and meet AEC-Q100 EMC requirements. |
| 4 NC | Not Connected | Internally unconnected; must be tied to GND per datasheet for optimal EMC performance. |
| 5 OUT2 | Analog Output SIN | Sine output (BZ component); ratiometric, 5–95% VDD swing; requires ≤10nF load capacitance for stability. |
| 6 VDD5V | 5V Supply Input | Active 5V rail; when used, VDD3V3 must remain floating. Supports 4.5–5.5V operation with 9mA typical supply current. |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V rail; when used, VDD5V must remain floating. Supports 3.135–3.6V operation with 6mA typical supply current. |
| 8 OUT1 | Analog Output COS | Cosine output (BX component); ratiometric, 5–95% VDD swing; synchronized with OUT2 for coherent angle calculation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-die assemblies in through-shaft layouts. |
| Selectable Magnetic Axis | X/Z configuration enables robust angle sensing with off-axis two-pole magnets-ideal for compact through-shaft motor designs where axial space is constrained. |
| Programmable Sensitivity Range | 30mT full-scale range (BAB-300) optimizes signal-to-noise ratio for NdFeB magnets while maintaining linearity within ±0.5% over temperature. |
| Ratiometric Analog Outputs | Outputs scale with VDD, removing dependency on stable voltage references and simplifying integration with MCU ADCs sharing the same supply rail. |
| High-Speed Update | 4µs output period supports real-time field-oriented control (FOC) loops at >25k RPM without interpolation latency. |
Applications
| Brushless Motor Control | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Precise rotor position feedback in PMSM and BLDC motors for field-oriented control in traction inverters and auxiliary drives. IC Role / Device Role / Timing Role: Resolver replacement delivering true 360° sine/cosine signals to MCU-based motor controller for torque and speed regulation. Use Value: Enables <±1° dynamic angular accuracy after ECU compensation, supporting high-efficiency FOC algorithms up to 25,000 rpm. |
Use Scenario: Compact, high-reliability steering angle sensing in column-assist and rack-assist EPS modules. IC Role / Device Role / Timing Role: Contactless absolute position sensor mounted on steering column shaft, providing fail-operational redundancy-ready signals. Use Value: SOIC-8 footprint and -40°C to 150°C rating allow direct integration into space-constrained, thermally aggressive EPS housings. |
| Industrial Servo Drives | Robot Joint Actuation |
|
Use Scenario: High-bandwidth position feedback in closed-loop servo amplifiers for CNC machines and packaging equipment. IC Role / Device Role / Timing Role: Primary angular transducer interfacing with FPGA or DSP-based motion controllers requiring sub-microsecond timing resolution. Use Value: 4µs output update and 29.5µs tracking delay enable deterministic control loop execution at kHz-level update rates. |
Use Scenario: Lightweight, non-contact joint angle measurement in collaborative and articulated robots requiring functional safety compliance. IC Role / Device Role / Timing Role: Absolute position sensor on motor output shaft, delivering ratiometric outputs compatible with ASIL-B signal conditioning chains. Use Value: X/Z axis configuration supports through-shaft mounting with minimal mechanical modification, reducing assembly complexity and BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAA-400-SP | SmCo magnet optimized, 50mT full-scale range, X/Y axis - higher sensitivity drift (1100 ppm/°C vs. 2000 ppm/°C for NdFeB), different magnetic axis geometry. | Preferred for end-of-shaft, high-temperature (>125°C) SmCo magnet systems where larger air gap tolerance is required. | Select BAA-400 only if magnet type and mechanical layout match SmCo + X/Y axis; not drop-in for BAB-300's NdFeB + X/Z configuration. |
| MLX90380LGO-BAB-023-SP | TSSOP-16 dual-die redundant package, identical BAB-023 option code (NdFeB, 30mT, X/Z, 5V medium BW), but with full hardware redundancy and separate die supplies. | Required for ASIL-D or SIL-3 functional safety architectures where single-point failure mitigation is mandated. | Choose LGO-BAB-023 when ISO 26262 ASIL D or IEC 61508 SIL 3 compliance is required; SOIC-8 LDC version lacks redundancy. |
Compared with MLX90380LDC-BAB-300-SP, the BAA-400 variant trades NdFeB compatibility and X/Z axis for SmCo support and X/Y geometry-requiring mechanical redesign-while the LGO-BAB-023 adds die-level redundancy at the cost of larger footprint and higher cost, making it suitable only for safety-critical deployments.
Availability
MLX90380LDC-BAB-300-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, industrial servo drives, and robot joint actuation requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAB-300-SP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Melexis is a Belgian semiconductor company specializing in intelligent sensors and driver ICs for automotive and industrial applications, with core expertise in magnetic sensing, thermal imaging, and RF solutions.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for resolver replacement in high-reliability motor control systems, targeting applications demanding extended temperature operation, programmable magnetic sensitivity, and flexible axis configuration.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-300-SP?
The MLX90380LDC-BAB-300-SP is factory-programmed for X/Z magnetic axis operation, meaning OUT1 responds to the BX (in-plane) component and OUT2 to the BZ (orthogonal) component. This configuration supports through-shaft mounting with two-pole off-axis magnets and is confirmed by the 'BAB-300' option code (BAB = NdFeB, -3xx = 5V + medium BW, middle digit '0' indicates X/Z axis per Table 2).
Does MLX90380LDC-BAB-300-SP support both 3.3V and 5V supply simultaneously?
No, MLX90380LDC-BAB-300-SP does not support simultaneous 3.3V and 5V operation. It uses separate VDD3V3 and VDD5V pins; only one supply rail may be active at a time. When using 5V, VDD3V3 must be left floating, and vice versa-per Section 9.1 and Figure 13 of the datasheet.
What is the angular accuracy specification for MLX90380LDC-BAB-300-SP?
The MLX90380LDC-BAB-300-SP achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied externally by the host ECU. Without compensation, total error is ±10° at 25°C and ±15° across -40°C to 150°C, as specified in Table 8 of the datasheet.
Can MLX90380LDC-BAB-300-SP be used in safety-critical automotive applications?
MLX90380LDC-BAB-300-SP is AEC-Q100 qualified and supports functional safety development, but its SOIC-8 single-die architecture lacks hardware redundancy. For ASIL D compliance, Melexis recommends the TSSOP-16 dual-die variant MLX90380LGO-BAB-023-SP, which provides full die-level redundancy required by ISO 26262.
How is the 30mT full-scale magnetic range implemented in MLX90380LDC-BAB-300-SP?
The 30mT full-scale range in MLX90380LDC-BAB-300-SP is factory-programmed via the option code '-300', corresponding to BAx-3xx (5V supply, medium bandwidth) and 30mT sensitivity per Table 2. At this setting, a ±30mT in-plane magnetic field produces a ±40% VDD output swing with VOQ = 50% VDD, enabling optimal ADC utilization for NdFeB magnets.
MLX90380LDC-BAB-300-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- Cosine, Sine
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5%
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAB-300-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-300-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-300-SP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MLX90380LDC-BAB-300-SP reliable?
The price and inventory of MLX90380LDC-BAB-300-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAB-300-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-300-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-300-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-300-SP?
MLX90380LDC-BAB-300-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-300-SP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MLX90380LDC-BAB-300-SP?
For technical support, including MLX90380LDC-BAB-300-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-300-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-300-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-300-SP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX90380LDC-BAB-300-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-300-SP?
All MLX90380LDC-BAB-300-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-300-SP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MLX90380LDC-BAB-300-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-300-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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